DETAILED ILLUSTRATION OF CONTINGENT MANAGEMENT PRACTICES FOR CEMENT KILN DUST

The generation of cement kiln dust (CKD) in cement plants throughout the United States is a part of the cement production process that has been studied often from a technical and regulatory perspective. CKD has been identified as a large volume, low hazard material that is currently the subject of a study by the United States Environmental Protection Agency as to appropriate management techniques. Land management techniques for handling solid waste are currently in effect and new regulations (Subtitle D) are soon to become effective. These may not, however, be the most practicable alternatives for managing CKD. In order to investigate alternative management techniques, Schreiber, Grana and Yonley, Inc., was commissioned to perform an engineering study to determine whether contingent management practices on a site-specific basis are a practical solution. Taken into account were operating characteristics of cement plants, the physical properties of CKD, the climatological regime of several domestic regions, and sound management techniques for solid waste management. The study methodology included use of an EPA approved landfill model to simulate the water balance in a waste management unit. The model was used to evaluate design considerations necessary to prevent leachate migration from a landfill. Further options for saturated CKD at specific locations were also addressed. The model was used to evaluate several different situations, including varying climatological regions, varying rainfall, and other pertinent factors. This study presents the design and operating parameters which have been identified as those which indicate that a monofill of CKD would not release leachate during the active life and during the 30-year post-closure period of the CKD management unit. The results demonstrate that contingent management practices, through site-specific design and operating considerations, are an effective approach for the environmentally sound management of CKD.

  • Availability:
  • Corporate Authors:

    Schreiber, Grana and Yonley, Incorporated

    271 Wolfner Drive
    St. Louis, MO  United States  63026
  • Authors:
    • Abeln, D L
    • Hastings, R J
    • Schreiber, R J
    • Yonley, C
  • Publication Date: 1993

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 52 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00664369
  • Record Type: Publication
  • ISBN: 0893121266
  • Report/Paper Numbers: SP115T
  • Files: TRIS
  • Created Date: Aug 22 1994 12:00AM